A Case of Adult-onset Urticaria Pigmentosa / 대한피부과학회지

Mastocytosis is a heterogenous group of disorders characterized by the proliferation and accumulation of mast cells in a variety of tissues, most often skin. Urticaria pigmentosa is the most common type of cutaneous mastocytosis in both adults and children. However, the clinical manifestation of adult-onset urticaria pigmentosa may have some differences such as smaller macules, more pruritic symptoms, and frequent association with systemic symptoms. We report a case of adult-onset urticaria pigmentosa in a 51-year-old woman which we compare to those cases reported in the literatures.